Defect: Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Cayenne Turbo, Cayenne GTS, and Cayenne GTS Coupe vehicles. Cracks may develop on the surface of the engine cylinder bore.
Consequence: Cracks may cause engine damage and a stall or an oil leak, increasing the risk of a crash or fire.
Remedy: Dealers will replace the engine, free of charge. Owner notification letters were mailed July 9, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB1.
Defect: Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Cayenne GTS, Cayenne GTS Coupe, 2020-2021 Cayenne Coupe, Cayenne S Coupe, Cayenne E-Hybrid Coupe vehicles. The passenger seat back heating element was not installed and may impact the calibration of the Occupant Classification System.
Consequence: The front passenger air bag may fail to deploy, increasing the risk of injury.
Remedy: Dealers will install a heating element, free of charge. Owner notification letters were mailed June 25, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB0.
Do not drive: No. Park outside: No.
Investigations
0 investigations; 0 open.
Manufacturer communications
466 manufacturer communications.
Communications by system
System
Count
ELECTRICAL SYSTEM
121
UNKNOWN OR OTHER
82
ENGINE
64
EQUIPMENT
55
ENGINE AND ENGINE COOLING
35
POWER TRAIN
22
STRUCTURE
21
Diagnostic Tester
16
11037849
Date: 2026-09-24. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE, VISIBILITY/WIPER.
Symptom-based workshop manual for Noises from Front Wiper Blade
11037818
Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, POWER TRAIN.
Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
11037822
Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, POWER TRAIN.
Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
11037825
Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, POWER TRAIN.
Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
11037868
Date: 2026-09-14. Type: Service Bulletin/Repair Instructions. Systems: STEERING, SUSPENSION, WHEELS.
Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central Computer (PCM)
11037800
Date: 2026-09-08. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, POWER TRAIN.
Technical Information for Yellow Warning Message a All-Wheel Drive System Malfunctiona , a C12BEF6a and a C133700a in the All-Wheel Electronics Control Unit
11037801
Date: 2026-09-08. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, POWER TRAIN.
Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
11037858
Date: 2026-09-01. Type: Service Campaign. Systems: ELECTRICAL SYSTEM.
Technical Information for Campaign WTK4 a Reset Vehicle Electrical System Battery
11037860
Date: 2026-09-01. Type: Service Campaign. Systems: ELECTRICAL SYSTEM.
Porsche intranet posting with Campaign WTK4 information
Notes on this record
Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.
This record lists no complaint under this name, and zero is not confirmed in this data build; the notes below give the reason.
NHTSA lists complaints for this model year under related names: CAYENNE (21). They are counted on those records, not here. Zero is not confirmed for this name.